A hollow structure has a hollow body with an annular first space; and at least one resonator in which there is formed an elongated second space with a pair of openings at two ends thereof. Each of the pair of openings comprises an opening that opens inwardly toward the interior of the first space. The ratio of the length of a centerline of the second space to the length of a centerline of the first space is within a range of from 0.45 to 0.55, and the second space has a bent or curved portion.


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    Titel :

    HOLLOW STRUCTURE AND RESONANCE NOISE REDUCTION BODY


    Weitere Titelangaben:

    HOHLSTRUKTUR UND RESONANZRAUSCHENREDUKTIONSKÖRPER
    STRUCTURE CREUSE ET CORPS DE RÉDUCTION DE BRUIT DE RÉSONANCE


    Beteiligte:
    HONJI YOSHIKAZU (Autor:in) / YOSHIDA AZUMI (Autor:in)

    Erscheinungsdatum :

    24.03.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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